mesa: use ATOMIC64_DEPENDS

libatomic is only needed where the compiler does not inline 64-bit
atomics, but the package depends on it on every target.
ATOMIC64_DEPENDS restricts the dependency to those targets.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>

libs/mesa/Makefile

@@ -2,7 +2,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=mesa
 PKG_VERSION:=26.1.2
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz
 PKG_SOURCE_URL:=https://archive.mesa3d.org/
@@ -64,7 +64,7 @@ define Package/mesa/Default
   SECTION:=libs
   CATEGORY:=Libraries
   SUBMENU:=Video
-  DEPENDS:=+libatomic
+  DEPENDS:=$(ATOMIC64_DEPENDS)
   TITLE:=Mesa3D
   URL:=https://www.mesa3d.org
 endef